Process and means for the manufacture of waterproof and expansive roofing and flooring.



I, EGGER & C. GARTENMANN. PROCESS AND MEANS FOR THE MANUFACTURE OF WATERPROOF AND. EXPANSIVE ROOFING AND FLOOFHNG.v APPLICATION FILED OCT. 3!,1912- 1,204,259. Patented Nov. 7, 1916.

IG-NAZ EGGER AND CARL GARTENMANN, 0F GOSSAU, SWITZERLAND.

PROCESS AND MEANS FOR THE MANUFACTURE OF WATERPROOF AND EXPANSIVE ROOFING AND FLOORING.

Specification of Letters Patent.

Patented Nov. *7, 1916.

Application filed October 31, 1912. Serial No. 728,830.

To all whom it may concern:

Be it known that we, IGNAZ Eoonn and CARL GARTENMANN, both citizens of Switzerland, and residents of Gossau, a small place in the Canton of St. Gall, Switzerland,

have invented a Process and Means for the Manufacture of Waterproof and Expansive Roofing and Flooring, of which the following is a specification.

This invention relates to a process and means for the manufacture of water-proof and expansive roofing and flooring and for rendering same resistible against all sorts of weather conditions.

The subject matter of the invention is illustrated in the drawing, in which:

Figure 1 shows a sectional view of the roof of a house, and Fig. 2 a plan thereof.

In carrying out this invention provision is made of a wire-netting 5 which, embedded in a coating of cement-mortar, is laid over the roof 1 and ceiling 3 of a building, (the walls thereof being indicated by l and 2), the said coating being made quite smooth on its face. A second coating 6 of insulating material, the composition of which is hereinafter described, is then applied to the first coating. Thus use is made of a composition containing 16 kilograms of coal-tar, 1 kilogram of 88-90 parts of anhydrous barium peroxid in powder form, and 1 kilogram of carbonate of soda-crystals dissolved in hot water (this latter mixture hereinafter called solwaz (90)), the whole being mixed and in turn mixed and thoroughly worked with a mixture consisting of fluid paste of mortar of avolume of approximately 1 cubic meter of pure sand, and 7 hundred weight of cement. During the application of the said second coating ledges of wood 10 are laid on the first coating in such a manner that on the subsequent removal of said ledges fields 7 or squares of about 1 square yard with intersecting and communicating grooves 8 are produced, Fig. 2, whereby the grooves at 9 are partly filled with alytol (coal tar devoid of ammonia) and finally covered by the aforesaid second coating. By this means an absolutely reliable roofing is produced which is proof against diiferences in the temperature and prevents any tearing of the isolating material. The flooring is constructed in precisely the same manner.

Having now fully described our said invention what we claim and desire to secure by Letters Patent is In a roof construction, a base having a concaved extension, a layer of reinforced plastic material having a concaved extension conforming to the base, said layer having a shoulder adjacent one end thereof, blocks of insulating material positioned over the reinforced plastic material, the blocks of insulating material adjacent one end of the roof engaging the shoulder and having a concaved extension positioned in the concaved extension of the reinforced plastic material and forming a gutter, expansible material positioned between the blocks of insulating material to allow contraction and expansion thereof.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

IGNAZ EGGER. CARL GARTENMANN.

Witnesses:

F. GOTTLIEB, EUGENE NOBEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

